JPS61166405A - Up and down conveyor - Google Patents

Abstract

PURPOSE:To simplify constitution and to prevent contact of works with each other, by a method wherein, in a title conveyor used in a hamberger making process, two annular endless belts are run along a guide means in a condition in that variable tension is exerted thereon, and the works are conveyed in a manner to be held between the nip formed by the belts. CONSTITUTION:With a driving pulley 7 rotated clockwise and a pulley 7' rotated counterclockwise, belts 2 and 3 are superposed with each other and driven in the UP direction of an arrow mark along roller groups 1. Thus, UP conveyance can be effected by feeding the works between the belts 2 and 3 as shown by an arrow mark B. In which case, application of tension by means of a tension pulley 5' is regulated depending upon the shape and the weight of the work through the force of a spring 6. Reversing of the rotation direction of the driving pulleys 7 and 7' enables to perform DOWN conveyance. This constitution permits selection of UP and DOWN conveyance of the works without contact of the works with each other through simple constitution.

Description

Detailed Description of the Invention [Field of Application of the Invention] The present invention makes it possible to sequentially transport a large number of objects to be transported, to carry them up or to carry them down, and to This is about an up and down conveyor that was created to maintain the distance between each other.

[Background of the invention]

For example, when producing hamburgers industrially, a large number of hamburgers (unfinished products in the middle of processing) are sequentially transported and passed through various automatic devices (e.g. molding equipment, breading equipment, etc.). In the conveyance means for processing, (a) objects to be conveyed must not come into contact with each other, and (b) objects to be conveyed must be conveyed at constant time intervals and at constant distance dimensions.

is often requested.

Here, the reason why they do not touch each other is to prevent the touching points from sticking together and causing shape distortion, and the reason why the distance is kept constant is to feed it to the automatic processing machine and pass it on. .

If the requirements (a) and (b) above are simply met, a known belt conveyor may be sufficient. However, technical difficulties arise when it becomes necessary to lift or lower the conveyed object during the processing process.
- In order to perform the above-mentioned lifting conveyance and lifting conveyance (hereinafter abbreviated as up and down) using a conventional belt conveyor, the belt conveyor must be installed with a slope. Since the inclination angle of the belt conveyor must be set to be less than the friction angle, the belt conveyor becomes long and requires a large installation area.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and has a simple configuration that requires less installation space, and moreover, a large number of transported objects can be transported at a constant interval without making them come into contact with each other. Upload things sequentially.

Can be transported down, and the shape of the transported object is 2.
The object is to provide a conveyor device that can adapt to changes in dimensions and changes in hardness and softness.

[Summary of the invention]

First, the basic principle of the device of the present invention created to achieve the above object will be explained.

While conventional belt conveyors have a structure in which objects to be conveyed are placed and conveyed, in the present invention, objects to be conveyed are sandwiched between two belts and conveyed. However, since the clamping force for clamping the conveyed object must not be too large or too small, the creativity of the present invention lies in the construction of a simple device that generates an appropriate clamping force. . Therefore, the device of the present invention is provided with a belt guide means provided along one or more circular arcs, and two annular endless belts wrapped around the belt guide means, and the two belts means for applying tension to at least one of the two belts, and means for rotationally driving at least one of the two belts, so that the conveyed object sandwiched between the two belts is guided by the belt. [Embodiment of the Invention] Next, an embodiment of the present invention will be described with reference to FIG. 1.

As shown by the imaginary line, a circular arc A having a radius r is set, and a large number of rollers 1 are arranged in a row so as to be substantially in contact with this circular arc A.

The rotation axis of each roller 1 is in a direction perpendicular to the radius r.

Two circular endless belts 2 are connected to the roller group 1 arranged in a row,
Wrap around 3.

The annular endless belt 2 is wound directly around the roller groups 1, 1, . Tension pulley5. Idler pulley 4. Same 4. 6 is a spring that biases the tension pulley 5, and 8 is a sprocket fixed to the drive pulley 7.

As described above, the circular endless belt 2 is wrapped around the roller groups 1, 1, etc., and the belt 3 is wrapped around the idler pulley 4.
', 4', 4', tension pulley 5', drive pulley 7', and idler pulley 4' in this order.

When carrying out the present invention, at least a means (tension pulley 5' in this example) for applying tension to the overlying annular endless belt (3 in this example) and a rotating drive means (drive pulley 7 in this example) are used. ') will be provided.

A circular endless chain 9 is wound around the sprockets 8 and 8', and both sprockets 8, 8',
The drive pulley 7 and the drive pulley 7' to which it is fixed rotate in the opposite direction. These drive pulleys 7.7' are connected to the drive device (
(not shown), the structure is such that it can be driven in any direction, forward or reverse.

In the device W constructed as described above (Fig. 1), when the drive pulley 7 is rotated clockwise in the figure and the drive pulley 7' is rotated counterclockwise in the figure, the two belts 2 and 3 are overlapped. The portions wrapped around the roller groups 1, 1, . . . (belt guide means) are driven in the direction of the arrow UP. Therefore, when an object to be conveyed is fed between the two belts as shown by arrow B, the object is sandwiched between the two belts, lifted in the direction of arrow UP, and carried out as shown by arrow B'.

Similarly, when the drive pulley 7 is rotated counterclockwise in the figure and the drive pulley 7' is rotated clockwise in the figure, the two belts 2 and 3 are driven in the direction of the arrow DOWN. In this state, arrow C
The conveyed object fed in the direction is lifted down along the arrow DOWN and carried out as shown by the arrow C'.

As is clear from the above-mentioned operation, while the object to be conveyed is sandwiched between the two belts 2 and 3 and conveyed, it remains stationary relative to the belts 2 and 3. Therefore, while a large number of objects to be transported are intermittently and sequentially supplied and transported up or down, the distance between the objects to be transported is kept constant, and there is no risk of them coming into contact with each other.

Further, even if the shape of the object to be transported is indefinite or the dimensions change slightly, the transporting action will not be hindered.

When using the apparatus W (FIG. 1) of this embodiment, if the object to be conveyed is soft and easily deformed, the biasing force of the spring 6' biasing the tension pulley 5' is adjusted accordingly. Also, if the object to be conveyed is heavy, adjust it more strongly.

FIG. 2 shows an embodiment different from the above embodiment, and the differences from the embodiment described above are as follows.

In the embodiment shown in FIG. 1, the rollers 1 are arranged in a row assuming a circular arc A with radius r as the belt guide means, but in the embodiment shown in FIG. A guide plate 10 having a shape is provided.

Although the embodiment shown in FIG. 2 has a larger friction between the belt 2 and the guide means than the first embodiment, the structure is simpler.
This is suitable for down transporting lightweight objects.

In the two embodiments described above (FIGS. 1 and 2), the radius of the guide means is set to a constant dimension r, but the radius of curvature of this guide means can also be varied.

FIG. 3 is an example in which the radius of curvature is set to a plurality of dimensions (the radius of curvature is varied steplessly, so mathematically it includes an infinite number of radii). With this configuration, the required installation area of the device is further reduced, but since the conveyed object is likely to slip in the part with a large radius of curvature (the part asymptotic to the vertical line), the tension of the belt must be adjusted to be strong. Applicable to lightweight objects.

It is also possible for the radius of curvature of the guide means to be partially negative. FIG. 4 shows an example in which the sign of the curvature of the guide means is reversed halfway. With this configuration, the required installation area can be reduced, and the guide route can be set so as not to approach a vertical line, so that the conveyed object does not slip on the belt.

In the embodiment shown in FIG. 4, a roller 1 and a guide plate 10' are used together as belt guide means. Also, idler pulley 4. Alternatively, it is also possible to configure one of the rollers 1 to also serve as the drive pulley, and this configuration has the effect of reducing the number of component parts.

〔Effect of the invention〕

As described in detail above, when the present invention is applied, a large number of objects to be transported can be moved up or down as desired while maintaining a constant distance between them, with a simple configuration that requires a small installation area, and without the risk of bringing a large number of objects into contact with each other. It can be transported in the direction of
Moreover, it has an excellent practical effect of being able to adapt to changes in the shape and dimensions of the transported object and changes in the degree of hardness and softness.

[Brief explanation of drawings]

1 to 4 are schematic side views each showing an embodiment of the apparatus of the present invention. 1... Roller, 2, 3... Annular endless belt, 4° 4'... Idler pulley, 5.5'... Tension pulley, 6, 6'... Spring, 7, 7' ... Drive pulley, 8.8'... Sprocket, 9... Chain, 10.10'... Guide plate.

Claims (1)

[Claims] 1. A belt guide means provided along one or more circular arcs, and 2 belt guide means wrapped around the belt guide means.
a ring-shaped endless belt, a means for applying tension to at least one of the two belts, and a means for rotationally driving at least one of the two belts; Up, down and
Conveyor. 2. The belt guiding means is characterized in that a large number of rollers are arranged on one or more circular arcs and whose axes are perpendicular to the circular arcs.
Up and down conveyors as described in section. 3. The up/down conveyor according to claim 2, wherein the roller of the guide means is a member that also serves as a pulley for driving the belt. 4. The belt guiding means is a plate having a straight cylindrical surface having a cut surface including one or more circular arcs. Conveyor.